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[expand - 1 more] - persisent services in Hadoop - Hadoop - [mail # user]
...We are an ISV that currently ships a data-quality/integration suite running as a native YARN application.  We are finding several use cases that would benefit from being able to manage ...
   Author: John Lilley, 2014-06-25, 20:48
[expand - 1 more] - RE: Gathering connection information - Hadoop - [mail # user]
...Thanks, that’s interesting information.  Use of an Edge Node sounds like a useful convention.  We are software vendors, and we want to connect to any Hadoop cluster regardless of c...
   Author: John Lilley, 2014-06-14, 12:14
RE: Hadoop SAN Storage reuse - Hadoop - [mail # user]
...Hadoop performs best when each node has exclusive use of its disk.  Therefore, if you have a choice, try to provision exclusive use of individual spindles on your SAN and map each one t...
   Author: John Lilley, 2014-06-12, 22:04
RE: partition file by content based through HDFS - Hadoop - [mail # user]
...To second Mirko, HDFS isn’t concerned with content or formats.  That would be analogous to asking specific content to end up on specific disk sectors in a normal file.  If you want...
   Author: John Lilley, 2014-05-12, 13:51
HDFS and YARN security and interface impacts - Hadoop - [mail # user]
...Hi, can anyone help me with this?From: John Lilley [mailto:[EMAIL PROTECTED]]Sent: Sunday, April 20, 2014 3:40 PMTo: [EMAIL PROTECTED]Subject: HDFS and YARN security and interface impactsWe ...
   Author: John Lilley, 2014-04-25, 15:42
reducing HDFS FS connection timeouts - Hadoop - [mail # user]
...It seems to take a very long time to timeout a connection to an invalid NN URI.  Our application is interactive so the defaults of taking many minutes don't work well.  I've tried ...
   Author: John Lilley, 2014-03-27, 20:24
RE: Hadoop Takes 6GB Memory to run one mapper - Hadoop - [mail # user]
...This discussion may also be relevant to your question:http://stackoverflow.com/questions/21005643/container-is-running-beyond-memory-limitsDo you actually need to specify that -Xmx6000m for ...
   Author: John Lilley, 2014-03-27, 12:55
RE: ipc.Client: Retrying connect to server - Hadoop - [mail # user]
...Does "netstat -an | grep LISTEN" show these ports being listened on?Can you stat hdfs from the command line e.g.:hdfs dfsadmin -reporthdfs fsck /hdfs dfs -ls /Also, check out /var/log/hadoop...
   Author: John Lilley, 2014-03-27, 12:41
[expand - 1 more] - Getting error message from AM container launch - Hadoop - [mail # user]
...Running a non-MapReduce YARN application, one of the containers launched by the AM is failing with an error message I've never seen.  Any ideas?  I'm not sure who exactly is runnin...
   Author: John Lilley, 2014-03-26, 22:38
[expand - 1 more] - ResourceManager shutting down - Hadoop - [mail # user]
...We have this erratic behavior where every so often the RM will shutdown with an UnknownHostException.  The odd thing is, the host it complains about have been in use for days at that po...
   Author: John Lilley, 2014-03-13, 20:52
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB